\section{节省事件和精力 自定义命令}
	\subsection{Time for action-craeting our first command using it as an abbrevitaion}
	\subsection{Gentle spacing after commands}
	\subsection{Time for action-adding intellingent spacing to command ouput}
	\subsection{creating more universal commands-using arguments}
	\subsection{Time for action-creating a macro for formating keywords}
	\subsection{Using optional arguments}
	\subsection{Time for action-marking keywords with optional formating}

